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Fig. 2 | Critical Care

Fig. 2

From: Limited predictability of maximal muscular pressure using the difference between peak airway pressure and positive end-expiratory pressure during proportional assist ventilation (PAV)

Fig. 2

Tidal volume, peak airway pressure (P aw, peak ) and respiratory mechanics during proportional assist ventilation (PAV) under different gains. PAV20 indicates a mean gain level of 20%. Significant differences in tidal volume were found between PAV60 vs. PAV20, PAV70 vs. PAV20, PAV70 vs. PAV30, and PAV70 vs. PAV40. Significant differences in Paw, peak were found among individual Paw, peak levels under different gains, except the Paw, peak of PAV20 vs. Paw, peak of PAV30 and Paw, peak of PAV70 vs. Paw, peak of PAV80. For PAV-based patient elastance (E pav ), significant differences were found between PAV20 vs. PAV50, PAV60, PAV70, and PAV80; PAV30 vs. PAV50, PAV60, PAV70, and PAV80; PAV40 vs. PAV50, PAV60, PAV70, and PAV80; PAV50 vs. PAV70 and PAV80; PAV60 vs. PAV80; and PAV70 vs. PAV80. No significant difference was found in PAV-based patient resistance (R pav ) among various gains. For the Epav and Rpav comparison, one patient was not included because of insufficient numbers of Epav and Rpav in PAV20 and PAV30

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Critical Care

ISSN: 1364-8535